摘要
针对变电站智能化的要求,提出一种基于现场可编程门阵列(FPGA)与先进精简指令集处理器(ARM)的智能合并单元(MU)实现方案,该方案集数据接收、处理和通信等功能模块为一体。其中数据处理模块基于IEEE1588精确对时,结合二次Lagrange插值与相位补偿算法,以提高精度;数据通信模块采用预配置采样值控制块,可实现采样值传输模型灵活定义,避免制造报文规范(MMS)映射的实现困难,以确保报文的实时性。通过电子式互感器稳态校验系统进行验证的结果表明,该合并单元样机可满足智能变电站对其通信数据的传输要求。
According to the smart requirements of substations,a design scheme of merging unit based on FPGA and ARM is proposed in this paper,which consists of data receiving module,processing module and communication module.Based on IEEE 1588 precise timing,the data processing module is combined with quadric Lagrange interpolation and phase compensation method to improve the sampling precision.In the data communication module,the pre-set up control block is applied to achieve the flexible definition of sampled value transmission model and avoid the difficulty of realizing manufacturing message specification （MMS） mapping,and to ensure the real-time performance of message.Finally,the steady calibration system of electric current transformer is utilized to verify the sampling values.The result shows that this merging unit meets the data transmission requirement in smart substation.
出处
《中国电力》
CSCD
北大核心
2013年第10期101-105,110,共6页
Electric Power
